I agree wholeheartedly with Rayvt's comments. Newsletters are pretty much just a way to separate you from your money. And that applies to any investing newsletter, not just this one.

However, in the most generous spirit I can muster toward any pay investing newsletter, most investing strategies are longer-term propositions than 3 months. I can't think of any strategy involving stocks that will not suffer underperformance from time to time.

The most important thing you can do with any newsletter is to understand what they are doing and what losses you might expect. It's also important to know what benchmark to test them against. I have no idea what the Supernova portfolio invests in, but it is possible that it would not be appropriate to measure it against the S&P 500. Given it's name, it might be more appropriate to compare it to some small cap index.